$ git clone -n https://src.fedoraproject.org/rpms/ghc-http-client-restricted.git /var/lib/mock/f38-build-side-42-init-devel-727368-27333/root/chroot_tmpdir/scmroot/ghc-http-client-restricted
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-727368-27333/root/chroot_tmpdir/scmroot/ghc-http-client-restricted'...
$ git fetch origin 5bc111eec38ec8b82eab35a0b22f818300db0332:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-http-client-restricted
 * [new ref]         5bc111eec38ec8b82eab35a0b22f818300db0332 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5bc111e Convert to %autorelease and %autochangelog